#include<iostream> #include<cstring> using namespace std; int main(){ char s[10005]; gets(s); int len = strlen(s); for(int i=0; i<len; i++) { if(s[i]>='a' && s[i]<='y'){ s[i] = s[i] + 1; }else if(s[i]=='z'){ s[i] = 'a'; } } cout << s; return 0; }

#include<bits/stdc++.h> using namespace std; string s; int main(){ getline(cin,s); for(int i=0;i<s.size();i++){ if(s[i]>='a'&& s[i]<'z'){ cout<<char(s[i]+1); } else if(s[i]=='z'){ cout<<'a'; } else{ cout<<s[i]; } } return 0; }

喏：#include<bits/stdc++.h> using namespace std;int main(){string s;getline(cin,s);int len=s.size();for(int i=0;i<len;i++{if(isalpha(s[i])&&s[i]!='z'){cout << char(s[i]+1);}else if(s[i]=='z'){cout << 'a';}else{cout << s[i];}}return 0;}

tips：作者懒得开发python了，2分钟速写（会点str技术的都会） 先打个广告（开门红） 加入团队（中国（附属）） 同盟国协会 string解法： 想看char的被划走：

#include <bits/stdc++.h> using namespace std; int main(){ char a[10000]; gets(a); int len = strlen(a); for(int i =0;i<len;i++){ if(a[i]>='a' && a[i]<='y'||a[i]>='A'&&a[i]<='Y'){ a[i]+=1; } else if(a[i]>='z' && a[i]<='z'||a[i]>='Z'&&a[i]<='Z'){ a[i]-=25; } } cout << a; return 0; }

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#include<bits/stdc++.h> using namespace std; int main(){ char a[10005]; gets(a); int len=strlen(a); for(int i=0;i<len;++i){ if(a[i]>='a' && a[i]<='y'){ a[i]+=1; } else if(a[i]=='z'){ a[i]-=25; } cout<<char(a[i]); } return 0; }

自己看吧：

#include <bits/stdc++.h> using namespace std; int main(){ string s; getline(cin,s); for(int i;i<=s.size();i++){ if(s[i]>='z'){ s[i]='a'; } else if(s[i]==' '){ }

#include<iostream> #include<string> using namespace std; int main(){ string a; getline(cin,a); int n=a.size(); for(int i=0;i<n;i++){ if(a[i]>='a' && a[i]<='y') a[i]=a[i]+1; else if(a[i]=='z') a[i]='a'; } cout << a; return 0; }